IndiPRO Tools Super Clamp with 1/4"-20 to 1/4"-20 Screw Converter Attach Accessories All Around Your Set, Secures to Surfaces up to 1.75" Wide, Removable 1/4"-20 to 1/4"-20 Screw, 1/4"-20 Threaded Hole, 3/8"-16 Threaded Hole, 10 lb Load Capacity...